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SUMMARY:Subham Dutta Chowdhury - Bounds on Regge growth of flat space scat
tering from bounds on chaos
DTSTART;VALUE=DATE-TIME:20210406T120000Z
DTEND;VALUE=DATE-TIME:20210406T140000Z
DTSTAMP;VALUE=DATE-TIME:20210512T030729Z
UID:indico-event-1008864@indico.cern.ch
DESCRIPTION:Zoom virtual seminar: Click here to enter room\n\nAbstract:\n
\nWe study four-point functions of scalars\, conserved currents\, and stre
ss tensors in a conformal field theory\, generated by a local contact term
in the bulk dual description\, in two different causal configurations. Th
e first of these is the standard Regge configuration in which the chaos bo
und applies. The second is the `causally scattering configuration' in whic
h the correlator develops a bulk point singularity. We find an expression
for the coefficient of the bulk point singularity in terms of the bulk S m
atrix of the bulk dual metric\, gauge fields and scalars\, and use it to d
etermine the Regge scaling of the correlator on the causally scattering sh
eet in terms of the Regge growth of this S matrix. We then demonstrate tha
t the Regge scaling on this sheet is governed by the same power as in the
standard Regge configuration\, and so is constrained by the chaos bound\,
which turns out to be violated unless the bulk flat space S matrix grows n
o faster than s^2 in the Regge limit. It follows that in the context of th
e AdS/CFT correspondence\, the chaos bound applied to the boundary field t
heory implies that the S matrices of the dual bulk scalars\, gauge fields\
, and gravitons obey the Classical Regge Growth (CRG) conjecture.\n\nhttps
://indico.cern.ch/event/1008864/
LOCATION:CERN Zoom Only
URL:https://indico.cern.ch/event/1008864/
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